murphy



April 1 1924. 1,488,609 I J. A. MURPHY AUTO HEATER Filed Jan. 16. 1922 2 Sheets-Sheet 1 INV EN TOR. JIMZJ H. Mae/ mt A TTORNEYS.

April 1 1924. 1,488,609

J. A. MURPHY AUTO HEATER Filed Jan. 1.6, 1922 2 Sheets-Sheet 2 INVENTOR. JA /755 r4 Mae/ H)? By 25 )g/m ATTORNEYS l atented Apr. l ".1924.

UNITED STATES PATENT OFFICEQ JAME A. MUHEE'HY, F GONIEERSVILLE.

AUTO HEATER.

Application filed January 16, 1822.

To all whom it may concern:

Be it lrnown that 1, James A. MURPHY, a citizen of the United States, and a resident of Connersville, county of Fayette. and State of Indiana, have invented a certain new and useful Auto Heater; and I do hereby declare that the following is a full clear, and exact description thereof, reference heing had to the accompanying drawings in which like numerals refer to like parts.

This invention relates to an auto heater "for self-propelled vehicles wherein air is heated by the engine and particularly the exhaust thereof.

The chief object of the invention is to provide a heatingsystem of the character indicated, wherein complete control of the heating medium and the heated medium is obtained.

Another object of the invention is to provide means for positively insuring the circulation of the heated medium.

in addition to the accomplishment of the foregoing objects, an additional feature con sists in hy-passing a portion oi the exhaust gases to and through a turbine unit to derive power for operating a tan in the heated medium system.

Another feature of the invention consists in the association of the muiiler or condenser in the exhaust line of an engine with a heater housing included in the heated medium system.

Other features of the invention will he p inted out in detail in the following speciiications.

The full nature of this invention will he understood. from the accompanying drawlugs and the following description and claim.

In the drawings Fig. l is a top plan view of an engine propelled vehicle showing parts of the invention therein by full and dotted lines. Fig. 2 is an enlarged elevational view of the heating and heated medium systems. Fig. 3 is an enlarged side elevational view of the combination mufiler and heater housing together with the tan and turbine, parts of the latter being broken away to show in section other parts in detail. Fig. 4 is an enlarged front view of the construction shown in Fig. 3. Fig. 5 is a side elevation of a modified form of the in vention wherein the fan and turbine has been omitted and is similar to Fig. 3.

in the drawings indicates an engine Serial 1T0. 529,487.

propelled vehicle in the form of an automohile having an engine ll therein and or the internal combustion type. The exhaust gases from the engine are discharged through an exhaust pipe 12 which communicates with a mufiier construction 20, which in turn communicates with a tail pipe construction l-l. The motor vehicle is shown provided with forward and rear seating compartments 15 and 16 respectively. and in each of said compartments there is positioned a register 17. Each register is connected by the pipe 18 to the construction indicated generally by the numeral 13 in Fig. 1.

Reference will now be had to Figs. 2., 3 and 4C and in said figures the muffler itself is indicated generally by the numeral 20. Said muliier is substantially cylindrical in form and the several details thereof are illustrated and described in co-pending application Serial No. 48%158 filed July 2. 1921. The muffler 9 0 is provided with an intake 21 which is adapted to receive the exhaust pipe 12, see Fig. 2. Interposed in the exhaust pipe 12, before it projects into the intake 21, is a cut-out construction indicated generally by the numeral 522. The details of said cutout are shown clearly in Fig. 5., and comprise a pivotally supported valve 23 which is maintained in the closed position loy a pivotally supported lever 24. When the lever 94: is rocked upon its pivotal support, the valve 23 opens, due to gravity, and the exhaust discharges through an opening normally closed by the valve 23. lhus the exhaust discharges from the pipe 12 without going through the muffler in the usual manner. Any other form of cut-out may he substituted for that herein disclosed without departing from the broader features of the invention. The niufiier E likewise is provided with a discharge 25 which connects with the tail pipe 14: in the usual or in any preferred manner.

Entirely surrounding the cylindrical muffier 20 is a heater housing 13 which is spaced therefrom. as shown clearly in Figs. 3 and 4:. The heater housing is provided with a partition 26 and the air which is received loy the housing is caused. by said partition, to engage the mufiier hefore being discharged from the housing. Herein the housing 13 is provided with an intake opening 27 and a pair of oppositely directed discharge open ings 28. The oppositely directed discharge openings 28 discharge into the conduits 18. which supply tee registeys 1'? With heated alr. V

The housing 13 is provided With an auxiliary intake chamber 29 which has an open-- ing 30 therein. The intake chainl'ier 29 com- Inunicates with the housing 13 and positioned in said chamber 29 is suitable ta n or impeller 31 mounted upon a shaft The shaft 32 extends transversely across and in front of the housing 13 and upon the opposite side of said housing is positioned a turbine construction Upon the shatt Which extends into the turbine housing is mounted a turbine Wheel 3% having the blades 35 thereon. A conduit 36 forms nozzle discharge adjacent the blades and an extension thereoi "forms it dischzirgg e 37 from said blades. interposed between the cutout member 22 and the intahe opening; 21 of the Inufiier 20 is a by-pass conduit which includes a valve 38 iUiTftpPSMi between the junction of the b z-pass 3!) with the enhaust pipe 12 and the turbine. nozzle 36. A. dis charge pipe 10 connects the exhaust 3'? of the turbine construction with the pipe 1.4:. as shown in Figs. 2 and 3 therein, h iassinrg the inuflier 20 and providing); tor u L, difference in pressure, thereby i airing or able a greater difference in pressure than Would be obtained it the conduit 4.0 discharged into the inutiier. Thus the exhaust gases are adapted. to operate the turbine, which in turn is adapted to rotate the inn pcller and positively circulate the air by drawing the same into the chamber 29 and forcing the same through the heater housing into the conduits l8.

l n Fig. 5' there is illustrated modified form of the intention in which the auxiliary intake chamber 29 has been omitted, together with the turbine construction 33. Utherwise the modification shown in 5 is substantially the same that shown in 3 The invention claii'i'ied is:

In self-propelled vehicle. the combination with an intcrnai combustion engine hitting an exhaust pipe for discharging en haust gases. of a inutiler connected. with said exhaust pipe adapted to be heated in the discharge of the uses therethrough, an air containing housing surrounding said muffier and deriving heat therefrom, a passage connecting aid housing With the interior of suid vehi a bypass connected '*i h the oe, and means operable b; the ex- 5h said b t tr: rib: roe my signature.

JAMES A. MURPTY. 

